Polycirrus dodeka Hutchings, 1990

Glasby, Christopher J. & Hutchings, Pat, 2014, Revision of the taxonomy of Polycirrus Grube, 1850 (Annelida: Terebellida: Polycirridae), Zootaxa 3877 (1), pp. 1-117 : 48-51

publication ID

https://doi.org/ 10.11646/zootaxa.3877.1.1

publication LSID

lsid:zoobank.org:pub:2695A2A6-2805-4FC6-B6B6-A8C68354B944

DOI

https://doi.org/10.5281/zenodo.4948586

persistent identifier

https://treatment.plazi.org/id/03CD87A2-FFBC-FFED-FF66-A7B0C452A24B

treatment provided by

Felipe

scientific name

Polycirrus dodeka Hutchings, 1990
status

 

Polycirrus dodeka Hutchings, 1990 View in CoL

Fig. 24a–d View FIGURE 24

Polycirrus dodeka Hutchings, 1990: 381–383 View in CoL , fig. 1a–d.

Type locality. Hong Kong .

Material examined. HOLOTYPE: AM W201884 , Hong Kong, Chek Chau , 22°30' N 114°21' E, coll. 10.iv.1986, under boulders in shallow water. GoogleMaps

Description. Holotype, originally complete now with posterior part of body detached, 10 mm long, 1 mm wide anteriorly, for about 65 segments.

Dorsum faintly tessellated anteriorly. Venter with mid-ventral groove from segment 4 and poorly defined ventro-lateral pads, pads deeply incised.

Buccal tentacles numerous, of two types: (1) cylindrical, thickened distally, distinctly grooved and (2) cylindrical, uniformly thin, weakly grooved, both arising at junction between prostomium and upper lip. Prostomial ridge slightly curved, not extending laterally. Upper lip comprising single (medial) lobe only, margin of lobe convoluted; oral surface glandular and ciliated. Inner lower lip oblong, ridged; outer region flat, shield-like, oblong, wider than long, ridged and grooved, extending posteriorly to segment 3. Achaetous segments visible dorsally but obscured by expanded outer lower lip ventrally ( Fig. 24a View FIGURE 24 ).

Notochaetigerous segments 12, extending to segment 14. Notopodia digitiform, prechaetal lobe low, postchaetal lobe digitiform, slighty longer than prechaetal. Notochaetae within a chaetiger consisting of one type (chaetiger 6 examined), two distinct lengths, strongly hirsute, uniformly tapered, posteriorly same form as those anteriorly ( Fig. 24b View FIGURE 24 ). Neurochaetae begin on segment 14, 5–10 uncini per row. Neuropodial tori erect rectangular pinnules. Uncini with short neck and straight to convex base (Type 1), teeth above main fang arranged in multiple series or arranged in double transverse series ( MF:2:∞), two enlarged median teeth above main fang, subrostral process absent ( Fig. 24c View FIGURE 24 ) .

Nephridial papillae present, spherical, initially very small and difficult to discern. Pre-gular membrane nephridial papillae absent. Post-gular membrane nephridial papillae present, extending from segment 5 to 14; situated at base of notopodia ( Fig. 24d View FIGURE 24 ).

AM

Australian Museum

Kingdom

Animalia

Phylum

Annelida

Class

Polychaeta

Order

Terebellida

Family

Terebellidae

Genus

Polycirrus

Loc

Polycirrus dodeka Hutchings, 1990

Glasby, Christopher J. & Hutchings, Pat 2014
2014
Loc

Polycirrus dodeka

Hutchings, P. A. 1990: 383
1990
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